RISC-V: Mark "c.nop" as an alias

This fixes "-M noaliases" disassembly for "c.nop", which is an alias for
"c.addi x0, 0".

opcodes/ChangeLog

2017-08-01  Palmer Dabbelt  <palmer@dabbelt.com>

        * riscv-opc.c (riscv_opcodes): Mark "c.nop" as an alias.

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 1ea12bb..72fb674 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+2017-08-22  Palmer Dabbelt  <palmer@dabbelt.com>
+
+       * riscv-opc.c (riscv_opcodes): Mark "c.nop" as an alias.
+
 2017-08-21  Alexander Fedotov <alexander.fedotov@nxp.com>
            Edmar Wienskoski <edmar.wienskoski@nxp.com>
 

diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c
index 9914c44..70a3628 100644 (file)
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -619,7 +619,7 @@ const struct riscv_opcode riscv_opcodes[] =
 {"c.lw",      "C",   "Ct,Ck(Cs)",  MATCH_C_LW, MASK_C_LW, match_opcode, 0 },
 {"c.swsp",    "C",   "CV,CM(Cc)",  MATCH_C_SWSP, MASK_C_SWSP, match_opcode, 0 },
 {"c.sw",      "C",   "Ct,Ck(Cs)",  MATCH_C_SW, MASK_C_SW, match_opcode, 0 },
-{"c.nop",     "C",   "",  MATCH_C_ADDI, 0xffff, match_opcode, 0 },
+{"c.nop",     "C",   "",  MATCH_C_ADDI, 0xffff, match_opcode, INSN_ALIAS },
 {"c.mv",      "C",   "d,CV",  MATCH_C_MV, MASK_C_MV, match_c_add, 0 },
 {"c.lui",     "C",   "d,Cu",  MATCH_C_LUI, MASK_C_LUI, match_c_lui, 0 },
 {"c.li",      "C",   "d,Co",  MATCH_C_LI, MASK_C_LI, match_rd_nonzero, 0 },